Chemical Engineering Mcqs 9594 MCQs [All-Courses]

Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

A diathermanous substance _______________ the thermal radiation completely?

A Absorbs

B Reflects

C Transmits

D None of these

Review Detailed Answer

Correct Answer: Transmits

Boiling point elevation of a solution of NaOH _____________________?

A Increases rapidly with temperature rise

B Is almost independent of temperature

C Is almost independent of pressure

D Both B. and C

Review Detailed Answer

Correct Answer: Both B. and C

Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) ?

A √d

B d

C d2

D d1.5

Review Detailed Answer

Correct Answer: d

Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the____________________?

A Maximum resistance in the series

B Sum of all resistances

C Average of all resistances

D Minimum resistance presents in the series

Review Detailed Answer

Correct Answer: Sum of all resistances

Prandtl and Reynolds analogy are same, when Prandtl number is____________________?

A 0.5

B 1

C > 2

D 1.5

Review Detailed Answer

Correct Answer: 1

Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is ____________________?

A Thin walled having the value of Ao Ai/< 2

B Thick walled

C Having the value of Ao/Ai > 2

D Both B. and C.

Review Detailed Answer

Correct Answer: Thin walled having the value of Ao Ai/< 2

jH factor for heat transfer is not a function of the _______________ number?

A Reynolds

B Nusselt

C Grashoff

D Both B. & C.

Review Detailed Answer

Correct Answer: Both B. & C.

In a heat exchanger, one transfer unit means___________________?

A A section of the exchanger in which change in temperature of one stream equals the average

B The size of the exchanger in which heat transfer rate is 1 kcal/hr

C Both A. and B.

D None of these

Review Detailed Answer

Correct Answer: A section of the exchanger in which change in temperature of one stream equals the average

A 2-4 heat exchanger involves__________________?

A Only counter-flow of fluids

B Only parallel-flow of fluids

C Both counter and parallel-flow of the fluids

D Smaller pressure drop compared to 1-2 exchanger

Review Detailed Answer

Correct Answer: Both counter and parallel-flow of the fluids

In a shell and tube heat exchanger, the height of 25 percent cut baffles is equal to (where, D = inside diameter of shell) ?

A 0.25 D

B 0.50 D

C 0.75 D

D None of these

Review Detailed Answer

Correct Answer: 0.75 D

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

A diathermanous substance _______________ the thermal radiation completely?

Boiling point elevation of a solution of NaOH _____________________?

Radiant energy received by a body is proportional to (where, d = the distance between the object emitting radiation and that receiving it.) ?

Overall thermal resistance for conductive heat transfer through a series of flat resistances is equal to the____________________?

Prandtl and Reynolds analogy are same, when Prandtl number is____________________?

Arithmetic mean area can be used in heat transfer problem to calculate the heat flow by conduction through a cylinder which is ____________________?

jH factor for heat transfer is not a function of the _______________ number?

In a heat exchanger, one transfer unit means___________________?

A 2-4 heat exchanger involves__________________?

In a shell and tube heat exchanger, the height of 25 percent cut baffles is equal to (where, D = inside diameter of shell) ?